Transaction not yet indexed

NBb7yAa8ApA9EpAMdzFeXfPugeBSsaxxWDpAYWdDXStGLgPNG99ET8pLe51YrT4vCPMQsr6FmwypBGmVq1GMM1k

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.